This Thompson Center manufactured blue finished late variation receiver lug is for the Black Diamond in-line muzzle loading rifle and is in very good condition with light wear. (file photo)

Note: Thompson Center Black Diamond muzzle loading rifles with the following serial numbers have been observed with this part:

Blue Finished Black Diamond: 35546, 36909, 52894, 58444, 58629, 70505, 79479 & 90912

Stainless Steel Black Diamond: S27571, S34981 & S37202

Blue Finished Black Diamond XR: R30285

Blue Finished Black Diamond Super 45 XR: R12322 & R18614